Urinary Catheter 'Fill and Flush' Valve: Safety, Effectiveness, Acceptability and Feasibility Trial

Inclusion Criteria: * IDC-users (urethral or suprapubic), over 18, who have had a catheter in situ for at least one month and use a manual valve or drainage bag to collect urine * Independent with catheter care needs (e.g. bag emptying or valve opening) * Able to transfer from bed to chair, stand and walk short distances unaided * Able to drink moderate levels of fluid (500mls in the first 2 hours and 150mls per hour thereafter) * Able to provide informed consent (self-report and research nurse assessment) * Usual medical provider provides confirmation of suitability Exclusion Criteria: * End stages of a terminal illness * Current treatment of urinary tract infection * Has been advised by a urologist against using a valve on clinical grounds * Lack of bladder sensation (e.g. unable to sense when bladder needs emptying) * Previous bladder surgery that could affect the integrity of the bladder * At known risk of autonomic dysreflexia